15530401112 has 8 divisors (see below), whose sum is σ = 29119502100. Its totient is φ = 7765200552.

The previous prime is 15530401093. The next prime is 15530401141. The reversal of 15530401112 is 21110403551.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×15530401112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970650062 + ... + 970650077.

Almost surely, 2^15530401112 is an apocalyptic number.

It is an amenable number.

15530401112 is a deficient number, since it is larger than the sum of its proper divisors (13589100988).

15530401112 is a wasteful number, since it uses less digits than its factorization.

15530401112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941300145 (or 1941300141 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 15530401112 its reverse (21110403551), we get a palindrome (36640804663).

The spelling of 15530401112 in words is "fifteen billion, five hundred thirty million, four hundred one thousand, one hundred twelve".